Ok, I've done my due dilligence in researching different macro setups (other than just buying a macro lens), and I think I'm more confused now than I was to begin with! First off, I want to play with macro photography. I'm not sure yet that I'm serious enough to justify getting a dedicated macro lens. I've been looking at several "cheap" options, and just can't decide which would be best. My gear as it stands now: Nikon D50, 18-70 mm f/3.5-4.5G, 50mm 1.8D, 75-300mm f/4.5-5.6. Filter sizes are 67, 52 and 62, respectively. So, the options I am considering, as well as the pros/cons as I've been able to deduce, are as follows... 1. reversing ring for the 50mm onto the camera body. Pros: cheap, good light, good results (?) Cons: no communication with the camera for metering, etc, no adjustability in magnification. 2. reversing ring to attach the 50mm to the 18-70. Very interested in hearing opinion on this one, as I've been able to find any information about this specific setup. Pros: cheap, camera can still "talk" to lens for metering etc (?) Cons: unknown quality of results, probably lots of light loss, ? 3. kenko extention tubes. Pros: communicate with camera, keep metering etc.. Cons: possible quality issues, way more money than I wanted to spend. 4. lens attachment like the raynox or nikon 4t. Really, I don't know anything about them, so any input is good. 5. Any other options? Really what I'm lookin for is relatively user-friendly system with some adjustability in magnification and good quality results, and not too expensive. I really appreciate any help the more experienced macro folks can give me here.